package juc.thread;


import java.util.concurrent.ArrayBlockingQueue;
import java.util.concurrent.BlockingQueue;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicInteger;

class MyResource{
    // 默认开启，进行生产+消费
    private volatile boolean FLAG = true;
    private AtomicInteger atomicInteger = new AtomicInteger();

    BlockingQueue<String> blockingQueue = null;

    public MyResource(BlockingQueue<String> blockingQueue) {
        this.blockingQueue = blockingQueue;
        System.out.println(blockingQueue.getClass().getName());
    }

    public void myProd() throws Exception{
        String data = null;
        boolean retValue;
        while(FLAG){
            data = atomicInteger.incrementAndGet()+"";
            retValue = blockingQueue.offer(data,2, TimeUnit.SECONDS);
            if (retValue){
                System.out.println(Thread.currentThread().getName()+"\t 插入队列"+data+"成功");
            }else{
                System.out.println(Thread.currentThread().getName()+"\t 插入队列"+data+"失败");
            }
            TimeUnit.SECONDS.sleep(1);
        }
        System.out.println("主线程叫停，表示FLAG=false,生产活动结束");
    }

    public void myConsumer() throws Exception{
        String result = null;
        while(FLAG){
            result = blockingQueue.poll(2L,TimeUnit.SECONDS);
            if (null == result||result.equalsIgnoreCase("")){
                FLAG = false;
                System.out.println(Thread.currentThread().getName()+"\t 超过2秒钟没有消费到数据，消费退出");
                return;
            }
            System.out.println(Thread.currentThread().getName()+"\t 消费队列"+result+"成功");
        }
    }

    public void stop(){
        this.FLAG = false;
    }
}


/**
 * @auther dyhan
 * @create 2020/3/12
 */
public class ProdConsumerBlockQueueDemo {
    public static void main(String[] args) throws InterruptedException {
        MyResource myResource = new MyResource(new ArrayBlockingQueue<>(10));
        new Thread(()->{
            try {
                myResource.myProd();
            } catch (Exception e) {
                e.printStackTrace();
            }
        },"prod").start();

        new Thread(()->{
            try {
                myResource.myConsumer();
            } catch (Exception e) {
                e.printStackTrace();
            }
        },"consumer").start();


        TimeUnit.SECONDS.sleep(5);
        myResource.stop();
        System.out.println("主线线程运行5秒后叫停，结束生产活动");

    }

}
